现在完成时

1以前我听过那个。 I have heard that before . 否定句： I haven’t heard that before 一般疑问句： Have you heard that before ? 肯定回答：Yes , I have 否定回答： No ,I haven’t 特殊疑问句： What have you heard before?
Welcome to our classroom
现在完成时
二年三班：肖立志
1.我已经看过这个电影了。 I have seen the film . 2。她刚刚听到这个消息。 She has just heard the news . 3.我学习英语已经四年了。 I have studied English for four years. 这些句子和我们以前学过的时态有所不 同。用的都是现在完成时。
二、 句型转换。 1They have been here since 2000. (对 划线部分提问) How long have they been here? died 2The old man _______ last year. He has been dead for a year. (die) （动词填空）
C 6、Zhao Lan ______already ______in this school for two years . A. was ; studying B. will ; study C. has ; studied D. are ; studying C 7、We ______ Xiao Li since she was a little girl . A. know B. had known C. have known D. knew B 8、Harry Potter is a very nice film .I______ it twice . A.will see B.have seen C.saw D.see B 9、—______ you ___ your homework yet ? — Yes . I _____ it a moment ago . A.Did ; do ; finished B.Have ; done ; finished C.Have ; done ; have finished D.will ; do ; finish
【一】规则动词过去分词的 构成； 1.一般在词尾直接加ed 2以e结尾的 动词直接加d 3以辅音字母+y结尾的 动词需要把y变i,再加ed 【二】不规则动词 需要特殊记 see--seen take--taken be--been eat--eaten
For example : 1，我从没参观过美国。 I have never visited the USA. 2,她已经完成这个工作了。 She has already finished the work . 3,所有的问题你都回答了吗？ Have you answered all the questions? 4,他已经学习英语四年了。 He has already learned English for four years.
Homework 练习现在完成时。
现在完成时 1。概念 .现在完成时表示在过去某个时 间做过的 ，发生过的事情，这种行为对 目前的影响还存在，还可以表示到目前 为止曾经经历或没有经历的事情。 2。它通常和already, yet, just, before, recently, ever, never, wice, 等词连用。
现在完成时谓语动词的构成为：助动词 （have/has ）+动词的过去分词 1.从2000年起我就在这所学校。 肯：I have been in this school since 2000. 否：I haven’t been in this school since 2000. 一般疑问句：Have you been in this school since 2000? 肯定回答：Yes ,I have .否定回答：No ,I haven’t
特殊疑问句：How long have you been in this school ？ 2.他去过英国。 肯：He has been to England 否：He hasn’t been to England . He hasn t 一般疑问句：Has he been to England. 肯定回答：Yes ,he has ,否定回答：No he hasn’t 特殊：Where has he been?
①肯定句：主语+have/has+动词的过去 分词+宾语. ②否定句：主语+have/has+not+动词 的过去分词+宾语. ③一般疑问句：Have/Has+主语+动词 的过去分词+宾语. ④特殊疑问句：特殊疑问词或词组+一 般疑问句（have/has+主语+过去分词+ 其他） 当主语是第三人称时，助动词用has ,其 余人称都用have.
当由for ,since 引导的现在完成时，顺时间动词 必须变成延续性动词。 for example come----be here , go ----be there leave ----be away borrow----keep buy-----have start/begin---be on finish----be over die -----be dead
Let’s practice . 单项选择
1、Both his parents look sad . Maybe they ______what's happened to him . B A. knew B. have known C. must know D.will know B 2、He has ______ been to Shanghai , has he ? A. already B.never C.ever D.still 3、Have you met Mr Li C ______？ A. just B. ago C.before D. a moment ago 4、The famous writer _____ one new book in the past D two year . A. is writing B.was writing C.wrote D.has written 5、—Our country C ______ a lot so far . —Yes . I hope it will be even ______ . A.has changed ; well B.changed ; good C.has changed ; better D.changed ; better